Home / 3,775.80-5,665.32-2,457.12

Finding the Fourth Proportional to 3,775.80, 5,665.32 and 2,457.12

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Solution

The fourth proportional to 3,775.80, 5,665.32 and 2,457.12 is: 3,686.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,775.80 : 5,665.32 = 2,457.12 : x
  2. Step 2: Convert to fraction form
    3,775.80/5,665.32 = 2,457.12/x
  3. Step 3: Cross multiply
    3,775.80x = 5,665.32 × 2,457.12
  4. Step 4: Simplify right side
    3,775.80x = 13,920,371.08
  5. Step 5: Solve for x
    x = 13,920,371.08/3,775.80
  6. Step 6: Final answer
    x = 3,686.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.